MOTOR GENERATOR CONTROL SYSTEM, Diagnostic DTC:P0BCC11, P0BCC15, P0BCC46

DTC Code DTC Name
P0BCC11 Generator Inverter Temperature Sensor Circuit Short to Ground
P0BCC15 Generator Inverter Temperature Sensor Circuit Short to Battery or Open
P0BCC46 Generator Inverter Temperature Sensor Calibration / Parameter Memory Failure

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into in the inverter with converter assembly, detects the temperature of the generator inverter using the generator inverter temperature sensor. The inverter cooling system operates independently of the engine cooling system. The motor generator control ECU (MG ECU) uses signals from the generator inverter temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the motor generator control ECU (MG ECU) will limit inverter output to help prevent inverter overheating. The motor generator control ECU (MG ECU) also detects malfunctions in the generator inverter temperature sensor and its wiring.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0BCC11 Generator Inverter Temperature Sensor Circuit Short to Ground

Short to ground detected in generator inverter temperature sensor circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
P0BCC15 Generator Inverter Temperature Sensor Circuit Short to Battery or Open

Open or short to +B detected in generator inverter temperature sensor circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
P0BCC46 Generator Inverter Temperature Sensor Calibration / Parameter Memory Failure

ECU internal malfunction

(EEPROM error)

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P0BCC11 Generator Inverter Temperature
P0BCC15
P0BCC46

CONFIRMATION DRIVING PATTERN

Tech Tips

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. With power switch on (IG) and wait for 5 seconds or more.

  7. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.

  8. Check the DTC judgment result.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

PROCEDURE


  1. REPLACE INVERTER WITH CONVERTER ASSEMBLY

    Click here

    Result
    Proceed to
    NEXT

    NEXT

    COMPLETED